EP 3446065 B1 20200325 - FLIGHT PARAMETER MEASURING APPARATUS AND FLIGHT PARAMETER MEASURING METHOD
Title (en)
FLIGHT PARAMETER MEASURING APPARATUS AND FLIGHT PARAMETER MEASURING METHOD
Title (de)
FLUGPARAMETERMESSVORRICHTUNG UND FLUGPARAMETERMESSVERFAHREN
Title (fr)
APPAREIL DE MESURE DE PARAMÈTRES DE VOL ET PROCÉDÉ DE MESURE DE PARAMÈTRES DE VOL
Publication
Application
Priority
- JP 2017109620 A 20170602
- JP 2018021293 W 20180601
Abstract (en)
[origin: WO2018221746A1] The image capturing part 201 captures a ball in flight with a camera continuously. The image corresponding part 203 generates a first registered ball image obtained by making a size of a first ball image correspond to a size of a second ball image. The 3D model constructing part 204 constructs a 3D model of the first registered ball image obtained by converting a camera coordinate system of the generated first registered ball image into a world coordinate system. The virtual rotating part 205 rotates virtually the constructed 3D model of the first registered ball image in the world coordinate system by using an initial rotation parameter and rotation matrix information. The registered image generating part 206 generates a second registered ball image in the camera coordinate system obtained by converting a world coordinate system of a visible surface, captured from the camera in the 3D model of the first registered ball image after the rotation, into a camera coordinate system. The difference calculating part 207 extracts a second compared ball image, corresponding to the second registered ball image, in the second ball image and calculates a difference between the second registered ball image and the second compared ball image. The rotation parameter determining part 208 repeats the virtual rotation of the 3D model, the generation of the second registered ball image and the calculation of the difference by changing the initial rotation parameter, and determines a rotation parameter to minimize the difference as a real rotation parameter of the ball.
IPC 8 full level
G06T 7/246 (2017.01); G01B 5/00 (2006.01); G01B 11/00 (2006.01); G01B 11/26 (2006.01); G01P 3/38 (2006.01); G01P 3/68 (2006.01); G01S 17/04 (2020.01)
CPC (source: EP KR US)
A63B 69/3658 (2013.01 - KR US); G01B 5/0023 (2013.01 - EP US); G01B 11/002 (2013.01 - EP US); G01B 11/26 (2013.01 - EP US); G01P 3/38 (2013.01 - EP KR US); G01P 3/685 (2013.01 - EP KR US); G01S 7/4808 (2013.01 - KR US); G01S 17/04 (2020.01 - EP US); G06T 7/248 (2016.12 - KR US); G06T 7/251 (2016.12 - EP US); G06T 7/74 (2016.12 - KR US); A63B 2024/0015 (2013.01 - US); A63B 2024/0034 (2013.01 - US); A63B 2220/05 (2013.01 - US); A63B 2220/31 (2013.01 - US); A63B 2220/807 (2013.01 - US); G06T 2207/10016 (2013.01 - EP US); G06T 2207/30224 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2018221746 A1 20181206; CA 3022839 A1 20181202; CA 3022839 C 20190702; CN 109392306 A 20190226; CN 109392306 B 20191126; EP 3446065 A1 20190227; EP 3446065 A4 20190605; EP 3446065 B1 20200325; JP 2018205074 A 20181227; JP 6236600 B1 20171129; KR 102002745 B1 20190723; KR 20180133927 A 20181217; SG 11201910034R A 20191128; TW 201825865 A 20180716; TW I631315 B 20180801; US 10345324 B2 20190709; US 2018348249 A1 20181206
DOCDB simple family (application)
JP 2018021293 W 20180601; CA 3022839 A 20180601; CN 201880002063 A 20180601; EP 18785799 A 20180601; JP 2017109620 A 20170602; KR 20187034433 A 20180601; SG 11201910034R A 20180601; TW 107112028 A 20180409; US 201815885888 A 20180201